Opinion 1885 Tyrannula minima Baird & Baird, 1843 (currently Empidonax Minimus) and Contopus pertinax Cabanis & Heine, 1859 (Aves, Passeriformes): specific names conserved
Published in Bulletin of Zoological Nomenclature, in 1977, in volume 54, issue 3, pages 206-207
Date published:1997-06-30